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Copper/Zinc-Superoxide Dismutase in Human Epidermis: An Immunochemical Study
Giovanna G Altobelli1, Susan Van Noorden2, Vincenzo Cimini1
1Department of Advanced Biomedical Sciences, Medical School, Federico II University of Naples, Naples, Italy.
Frontiers in Medicine
|December 5, 2019
Summary
Copper and zinc-superoxide dismutase (Cu, Zn-SOD) localization in human skin varies by gender, age, and UV exposure. Enzyme levels differ between normal and neoplastic skin cells, offering insights into skin physiology and disease.
Area of Science:
- Dermatology
- Biochemistry
- Cell Biology
Background:
- Copper and zinc-superoxide dismutase (Cu, Zn-SOD) is crucial for cellular defense against oxidative stress.
- Understanding Cu, Zn-SOD localization in human skin is important for skin health and disease research.
Purpose of the Study:
- To investigate the localization and distribution of Cu, Zn-SOD in normal and neoplastic human skin.
- To determine how factors like gender, age, UV exposure, and neoplastic state affect Cu, Zn-SOD levels in skin.
Main Methods:
- Immunochemical techniques were used to examine Cu, Zn-SOD localization.
- Skin samples were obtained from diverse groups: males and females of varying ages, UV-exposed and non-exposed areas, and individuals with basal- and spinocellular carcinomas.
Main Results:
- Cu, Zn-SOD was found diffusely in the cytoplasm and nuclei of epidermal and dermal cells.
- Epidermal Cu, Zn-SOD levels were higher in males, UV-exposed skin, and younger individuals.
- Tumor epidermal layers showed higher enzyme content than deeper tumoral cells.
Conclusions:
- Cu, Zn-SOD localization in skin is influenced by gender, age, cell type, and physiological/pathological status.
- Further research into systemic changes of Cu, Zn-SOD in skin could illuminate tumor cell generation mechanisms.